Since 9/11/2001, there has been increased concern for passenger safety. This has
ID: 2959042 • Letter: S
Question
Since 9/11/2001, there has been increased concern for passenger safety. This has led to calls for new and more intrusive passenger screening equipment. While concerns for passengers’ privacy are an important part of the debate, there are also concerns for the length of time required to move passengers through the proposed new screen devices, and the strain on travelers caused by additional delays.The manufacturer of the proposed new scanning device claims that individual passengers can move through in less than 5 seconds on average. A random sample of 100 passengers is put through the seconds. Based on earlier test of a similar machine installed in a foreign airport, the population standard deviation is known to be .48 seconds.
Conduct a hypothesis test, find the p-value; and interpret the weight of evidence provided by the p-value in support of the manufacture’s accept the alternative hypothesis Ha: µ >(=) 5 seconds and accept the alternative hypothesis Ha: µ < 5 seconds.
p-value= ________ (round to three decimal places).
The weight of evidence to conclude that the manufacture’s claim is correct is; __________ (some evidence, strong evidence, very strong evidence, extremely strong evidence, little evidence).
Explanation / Answer
complete